/** @file
  The firmware file related definitions in PI.

Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

  @par Revision Reference:
  PI Version 1.6.

**/


#ifndef __PI_FIRMWARE_FILE_H__
#define __PI_FIRMWARE_FILE_H__

#pragma pack(1)
///
/// Used to verify the integrity of the file.
///
typedef union {
  struct {
    ///
    /// The IntegrityCheck.Checksum.Header field is an 8-bit checksum of the file
    /// header. The State and IntegrityCheck.Checksum.File fields are assumed
    /// to be zero and the checksum is calculated such that the entire header sums to zero.
    ///
    UINT8   Header;
    ///
    /// If the FFS_ATTRIB_CHECKSUM (see definition below) bit of the Attributes
    /// field is set to one, the IntegrityCheck.Checksum.File field is an 8-bit
    /// checksum of the file data.
    /// If the FFS_ATTRIB_CHECKSUM bit of the Attributes field is cleared to zero,
    /// the IntegrityCheck.Checksum.File field must be initialized with a value of
    /// 0xAA. The IntegrityCheck.Checksum.File field is valid any time the
    /// EFI_FILE_DATA_VALID bit is set in the State field.
    ///
    UINT8   File;
  } Checksum;
  ///
  /// This is the full 16 bits of the IntegrityCheck field.
  ///
  UINT16    Checksum16;
} EFI_FFS_INTEGRITY_CHECK;

///
/// FFS_FIXED_CHECKSUM is the checksum value used when the
/// FFS_ATTRIB_CHECKSUM attribute bit is clear.
///
#define FFS_FIXED_CHECKSUM  0xAA

typedef UINT8 EFI_FV_FILETYPE;
typedef UINT8 EFI_FFS_FILE_ATTRIBUTES;
typedef UINT8 EFI_FFS_FILE_STATE;

///
/// File Types Definitions
///
#define EFI_FV_FILETYPE_ALL                   0x00
#define EFI_FV_FILETYPE_RAW                   0x01
#define EFI_FV_FILETYPE_FREEFORM              0x02
#define EFI_FV_FILETYPE_SECURITY_CORE         0x03
#define EFI_FV_FILETYPE_PEI_CORE              0x04
#define EFI_FV_FILETYPE_DXE_CORE              0x05
#define EFI_FV_FILETYPE_PEIM                  0x06
#define EFI_FV_FILETYPE_DRIVER                0x07
#define EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER  0x08
#define EFI_FV_FILETYPE_APPLICATION           0x09
#define EFI_FV_FILETYPE_MM                    0x0A
#define EFI_FV_FILETYPE_SMM                   EFI_FV_FILETYPE_MM
#define EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE 0x0B
#define EFI_FV_FILETYPE_COMBINED_MM_DXE       0x0C
#define EFI_FV_FILETYPE_COMBINED_SMM_DXE      EFI_FV_FILETYPE_COMBINED_MM_DXE
#define EFI_FV_FILETYPE_MM_CORE               0x0D
#define EFI_FV_FILETYPE_SMM_CORE              EFI_FV_FILETYPE_MM_CORE
#define EFI_FV_FILETYPE_MM_STANDALONE         0x0E
#define EFI_FV_FILETYPE_MM_CORE_STANDALONE    0x0F
#define EFI_FV_FILETYPE_OEM_MIN               0xc0
#define EFI_FV_FILETYPE_OEM_MAX               0xdf
#define EFI_FV_FILETYPE_DEBUG_MIN             0xe0
#define EFI_FV_FILETYPE_DEBUG_MAX             0xef
#define EFI_FV_FILETYPE_FFS_MIN               0xf0
#define EFI_FV_FILETYPE_FFS_MAX               0xff
#define EFI_FV_FILETYPE_FFS_PAD               0xf0
///
/// FFS File Attributes.
///
#define FFS_ATTRIB_LARGE_FILE         0x01
#define FFS_ATTRIB_DATA_ALIGNMENT_2   0x02
#define FFS_ATTRIB_FIXED              0x04
#define FFS_ATTRIB_DATA_ALIGNMENT     0x38
#define FFS_ATTRIB_CHECKSUM           0x40

///
/// FFS File State Bits.
///
#define EFI_FILE_HEADER_CONSTRUCTION  0x01
#define EFI_FILE_HEADER_VALID         0x02
#define EFI_FILE_DATA_VALID           0x04
#define EFI_FILE_MARKED_FOR_UPDATE    0x08
#define EFI_FILE_DELETED              0x10
#define EFI_FILE_HEADER_INVALID       0x20


///
/// Each file begins with the header that describe the
/// contents and state of the files.
///
typedef struct {
  ///
  /// This GUID is the file name. It is used to uniquely identify the file.
  ///
  EFI_GUID                Name;
  ///
  /// Used to verify the integrity of the file.
  ///
  EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
  ///
  /// Identifies the type of file.
  ///
  EFI_FV_FILETYPE         Type;
  ///
  /// Declares various file attribute bits.
  ///
  EFI_FFS_FILE_ATTRIBUTES Attributes;
  ///
  /// The length of the file in bytes, including the FFS header.
  ///
  UINT8                   Size[3];
  ///
  /// Used to track the state of the file throughout the life of the file from creation to deletion.
  ///
  EFI_FFS_FILE_STATE      State;
} EFI_FFS_FILE_HEADER;

typedef struct {
  ///
  /// This GUID is the file name. It is used to uniquely identify the file. There may be only
  /// one instance of a file with the file name GUID of Name in any given firmware
  /// volume, except if the file type is EFI_FV_FILETYPE_FFS_PAD.
  ///
  EFI_GUID                  Name;

  ///
  /// Used to verify the integrity of the file.
  ///
  EFI_FFS_INTEGRITY_CHECK   IntegrityCheck;

  ///
  /// Identifies the type of file.
  ///
  EFI_FV_FILETYPE           Type;

  ///
  /// Declares various file attribute bits.
  ///
  EFI_FFS_FILE_ATTRIBUTES   Attributes;

  ///
  /// The length of the file in bytes, including the FFS header.
  /// The length of the file data is either (Size - sizeof(EFI_FFS_FILE_HEADER)). This calculation means a
  /// zero-length file has a Size of 24 bytes, which is sizeof(EFI_FFS_FILE_HEADER).
  /// Size is not required to be a multiple of 8 bytes. Given a file F, the next file header is
  /// located at the next 8-byte aligned firmware volume offset following the last byte of the file F.
  ///
  UINT8                     Size[3];

  ///
  /// Used to track the state of the file throughout the life of the file from creation to deletion.
  ///
  EFI_FFS_FILE_STATE        State;

  ///
  /// If FFS_ATTRIB_LARGE_FILE is set in Attributes, then ExtendedSize exists and Size must be set to zero.
  /// If FFS_ATTRIB_LARGE_FILE is not set then EFI_FFS_FILE_HEADER is used.
  ///
  UINT64                    ExtendedSize;
} EFI_FFS_FILE_HEADER2;

#define IS_FFS_FILE2(FfsFileHeaderPtr) \
    (((((EFI_FFS_FILE_HEADER *) (UINTN) FfsFileHeaderPtr)->Attributes) & FFS_ATTRIB_LARGE_FILE) == FFS_ATTRIB_LARGE_FILE)

///
/// The argument passed as the FfsFileHeaderPtr parameter to the
/// FFS_FILE_SIZE() function-like macro below must not have side effects:
/// FfsFileHeaderPtr is evaluated multiple times.
///
#define FFS_FILE_SIZE(FfsFileHeaderPtr) ((UINT32) ( \
    (((EFI_FFS_FILE_HEADER *) (UINTN) (FfsFileHeaderPtr))->Size[0]      ) | \
    (((EFI_FFS_FILE_HEADER *) (UINTN) (FfsFileHeaderPtr))->Size[1] <<  8) | \
    (((EFI_FFS_FILE_HEADER *) (UINTN) (FfsFileHeaderPtr))->Size[2] << 16)))

#define FFS_FILE2_SIZE(FfsFileHeaderPtr) \
    ((UINT32) (((EFI_FFS_FILE_HEADER2 *) (UINTN) FfsFileHeaderPtr)->ExtendedSize))

typedef UINT8 EFI_SECTION_TYPE;

///
/// Pseudo type. It is used as a wild card when retrieving sections.
///  The section type EFI_SECTION_ALL matches all section types.
///
#define EFI_SECTION_ALL                   0x00

///
/// Encapsulation section Type values.
///
#define EFI_SECTION_COMPRESSION           0x01

#define EFI_SECTION_GUID_DEFINED          0x02

#define EFI_SECTION_DISPOSABLE            0x03

///
/// Leaf section Type values.
///
#define EFI_SECTION_PE32                  0x10
#define EFI_SECTION_PIC                   0x11
#define EFI_SECTION_TE                    0x12
#define EFI_SECTION_DXE_DEPEX             0x13
#define EFI_SECTION_VERSION               0x14
#define EFI_SECTION_USER_INTERFACE        0x15
#define EFI_SECTION_COMPATIBILITY16       0x16
#define EFI_SECTION_FIRMWARE_VOLUME_IMAGE 0x17
#define EFI_SECTION_FREEFORM_SUBTYPE_GUID 0x18
#define EFI_SECTION_RAW                   0x19
#define EFI_SECTION_PEI_DEPEX             0x1B
#define EFI_SECTION_MM_DEPEX              0x1C
#define EFI_SECTION_SMM_DEPEX             EFI_SECTION_MM_DEPEX

///
/// Common section header.
///
typedef struct {
  ///
  /// A 24-bit unsigned integer that contains the total size of the section in bytes,
  /// including the EFI_COMMON_SECTION_HEADER.
  ///
  UINT8             Size[3];
  EFI_SECTION_TYPE  Type;
  ///
  /// Declares the section type.
  ///
} EFI_COMMON_SECTION_HEADER;

typedef struct {
  ///
  /// A 24-bit unsigned integer that contains the total size of the section in bytes,
  /// including the EFI_COMMON_SECTION_HEADER.
  ///
  UINT8             Size[3];

  EFI_SECTION_TYPE  Type;

  ///
  /// If Size is 0xFFFFFF, then ExtendedSize contains the size of the section. If
  /// Size is not equal to 0xFFFFFF, then this field does not exist.
  ///
  UINT32            ExtendedSize;
} EFI_COMMON_SECTION_HEADER2;

///
/// Leaf section type that contains an
/// IA-32 16-bit executable image.
///
typedef EFI_COMMON_SECTION_HEADER  EFI_COMPATIBILITY16_SECTION;
typedef EFI_COMMON_SECTION_HEADER2 EFI_COMPATIBILITY16_SECTION2;

///
/// CompressionType of EFI_COMPRESSION_SECTION.
///
#define EFI_NOT_COMPRESSED        0x00
#define EFI_STANDARD_COMPRESSION  0x01
///
/// An encapsulation section type in which the
/// section data is compressed.
///
typedef struct {
  ///
  /// Usual common section header. CommonHeader.Type = EFI_SECTION_COMPRESSION.
  ///
  EFI_COMMON_SECTION_HEADER   CommonHeader;
  ///
  /// The UINT32 that indicates the size of the section data after decompression.
  ///
  UINT32                      UncompressedLength;
  ///
  /// Indicates which compression algorithm is used.
  ///
  UINT8                       CompressionType;
} EFI_COMPRESSION_SECTION;

typedef struct {
  ///
  /// Usual common section header. CommonHeader.Type = EFI_SECTION_COMPRESSION.
  ///
  EFI_COMMON_SECTION_HEADER2    CommonHeader;
  ///
  /// UINT32 that indicates the size of the section data after decompression.
  ///
  UINT32                        UncompressedLength;
  ///
  /// Indicates which compression algorithm is used.
  ///
  UINT8                         CompressionType;
} EFI_COMPRESSION_SECTION2;

///
/// An encapsulation section type in which the section data is disposable.
/// A disposable section is an encapsulation section in which the section data may be disposed of during
/// the process of creating or updating a firmware image without significant impact on the usefulness of
/// the file. The Type field in the section header is set to EFI_SECTION_DISPOSABLE. This
/// allows optional or descriptive data to be included with the firmware file which can be removed in
/// order to conserve space. The contents of this section are implementation specific, but might contain
/// debug data or detailed integration instructions.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_DISPOSABLE_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_DISPOSABLE_SECTION2;

///
/// The leaf section which could be used to determine the dispatch order of DXEs.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_DXE_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_DXE_DEPEX_SECTION2;

///
/// The leaf section which contains a PI FV.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_FIRMWARE_VOLUME_IMAGE_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_FIRMWARE_VOLUME_IMAGE_SECTION2;

///
/// The leaf section which contains a single GUID.
///
typedef struct {
  ///
  /// Common section header. CommonHeader.Type = EFI_SECTION_FREEFORM_SUBTYPE_GUID.
  ///
  EFI_COMMON_SECTION_HEADER   CommonHeader;
  ///
  /// This GUID is defined by the creator of the file. It is a vendor-defined file type.
  ///
  EFI_GUID                    SubTypeGuid;
} EFI_FREEFORM_SUBTYPE_GUID_SECTION;

typedef struct {
  ///
  /// The common section header. CommonHeader.Type = EFI_SECTION_FREEFORM_SUBTYPE_GUID.
  ///
  EFI_COMMON_SECTION_HEADER2    CommonHeader;
  ///
  /// This GUID is defined by the creator of the file. It is a vendor-defined file type.
  ///
  EFI_GUID                      SubTypeGuid;
} EFI_FREEFORM_SUBTYPE_GUID_SECTION2;

///
/// Attributes of EFI_GUID_DEFINED_SECTION.
///
#define EFI_GUIDED_SECTION_PROCESSING_REQUIRED  0x01
#define EFI_GUIDED_SECTION_AUTH_STATUS_VALID    0x02
///
/// The leaf section which is encapsulation defined by specific GUID.
///
typedef struct {
  ///
  /// The common section header. CommonHeader.Type = EFI_SECTION_GUID_DEFINED.
  ///
  EFI_COMMON_SECTION_HEADER   CommonHeader;
  ///
  /// The GUID that defines the format of the data that follows. It is a vendor-defined section type.
  ///
  EFI_GUID                    SectionDefinitionGuid;
  ///
  /// Contains the offset in bytes from the beginning of the common header to the first byte of the data.
  ///
  UINT16                      DataOffset;
  ///
  /// The bit field that declares some specific characteristics of the section contents.
  ///
  UINT16                      Attributes;
} EFI_GUID_DEFINED_SECTION;

typedef struct {
  ///
  /// The common section header. CommonHeader.Type = EFI_SECTION_GUID_DEFINED.
  ///
  EFI_COMMON_SECTION_HEADER2    CommonHeader;
  ///
  /// The GUID that defines the format of the data that follows. It is a vendor-defined section type.
  ///
  EFI_GUID                      SectionDefinitionGuid;
  ///
  /// Contains the offset in bytes from the beginning of the common header to the first byte of the data.
  ///
  UINT16                        DataOffset;
  ///
  /// The bit field that declares some specific characteristics of the section contents.
  ///
  UINT16                        Attributes;
} EFI_GUID_DEFINED_SECTION2;

///
/// The leaf section which contains PE32+ image.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_PE32_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_PE32_SECTION2;

///
/// The leaf section used to determine the dispatch order of PEIMs.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_PEI_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_PEI_DEPEX_SECTION2;

///
/// A leaf section type that contains a position-independent-code (PIC) image.
/// A PIC image section is a leaf section that contains a position-independent-code (PIC) image.
/// In addition to normal PE32+ images that contain relocation information, PEIM executables may be
/// PIC and are referred to as PIC images. A PIC image is the same as a PE32+ image except that all
/// relocation information has been stripped from the image and the image can be moved and will
/// execute correctly without performing any relocation or other fix-ups. EFI_PIC_SECTION2 must
/// be used if the section is 16MB or larger.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_PIC_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_PIC_SECTION2;

///
/// The leaf section which constains the position-independent-code image.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_TE_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_TE_SECTION2;

///
/// The leaf section which contains an array of zero or more bytes.
///
typedef EFI_COMMON_SECTION_HEADER   EFI_RAW_SECTION;
typedef EFI_COMMON_SECTION_HEADER2  EFI_RAW_SECTION2;

///
/// The SMM dependency expression section is a leaf section that contains a dependency expression that
/// is used to determine the dispatch order for SMM drivers. Before the SMRAM invocation of the
/// SMM driver's entry point, this dependency expression must evaluate to TRUE. See the Platform
/// Initialization Specification, Volume 2, for details regarding the format of the dependency expression.
/// The dependency expression may refer to protocols installed in either the UEFI or the SMM protocol
/// database. EFI_SMM_DEPEX_SECTION2 must be used if the section is 16MB or larger.
///
typedef EFI_COMMON_SECTION_HEADER EFI_SMM_DEPEX_SECTION;
typedef EFI_COMMON_SECTION_HEADER2 EFI_SMM_DEPEX_SECTION2;

///
/// The leaf section which contains a unicode string that
/// is human readable file name.
///
typedef struct {
  EFI_COMMON_SECTION_HEADER   CommonHeader;

  ///
  /// Array of unicode string.
  ///
  CHAR16                      FileNameString[1];
} EFI_USER_INTERFACE_SECTION;

typedef struct {
  EFI_COMMON_SECTION_HEADER2    CommonHeader;
  CHAR16                        FileNameString[1];
} EFI_USER_INTERFACE_SECTION2;

///
/// The leaf section which contains a numeric build number and
/// an optional unicode string that represents the file revision.
///
typedef struct {
  EFI_COMMON_SECTION_HEADER   CommonHeader;
  UINT16                      BuildNumber;

  ///
  /// Array of unicode string.
  ///
  CHAR16                      VersionString[1];
} EFI_VERSION_SECTION;

typedef struct {
  EFI_COMMON_SECTION_HEADER2    CommonHeader;
  ///
  /// A UINT16 that represents a particular build. Subsequent builds have monotonically
  /// increasing build numbers relative to earlier builds.
  ///
  UINT16                        BuildNumber;
  CHAR16                        VersionString[1];
} EFI_VERSION_SECTION2;

///
/// The argument passed as the SectionHeaderPtr parameter to the SECTION_SIZE()
/// and IS_SECTION2() function-like macros below must not have side effects:
/// SectionHeaderPtr is evaluated multiple times.
///
#define SECTION_SIZE(SectionHeaderPtr) ((UINT32) ( \
    (((EFI_COMMON_SECTION_HEADER *) (UINTN) (SectionHeaderPtr))->Size[0]      ) | \
    (((EFI_COMMON_SECTION_HEADER *) (UINTN) (SectionHeaderPtr))->Size[1] <<  8) | \
    (((EFI_COMMON_SECTION_HEADER *) (UINTN) (SectionHeaderPtr))->Size[2] << 16)))

#define IS_SECTION2(SectionHeaderPtr) \
    (SECTION_SIZE (SectionHeaderPtr) == 0x00ffffff)

#define SECTION2_SIZE(SectionHeaderPtr) \
    (((EFI_COMMON_SECTION_HEADER2 *) (UINTN) SectionHeaderPtr)->ExtendedSize)

#pragma pack()

#endif

